git log -S not finding all commits?

Hi,

I did:

$ git version git version 1.6.4.4 $ mkdir a && cd a && git init $ echo "Free data" > a $ git add a $ git commit -m1 $ echo "Free data allocated by other function" > a $ git commit -a -m2 $ PAGER=cat git log -S'Free' --oneline 2f34241 1

I would expect "git log" to show both 1 and 2 commit, but it prints only 1.

Is it the correct behavior?